public function testGivenThatWePreviouslyAttachedTheXReadingGroupHeaderToTheyWillBeAPartOfTheReturnedArray()
{
$this->request->headers->set(HeaderKey::REQUEST_ADDITION, HeaderKey::REQUEST_ADDITION_VALUE);
$expectedReturn = [HeaderKey::REQUEST_ADDITION => HeaderKey::REQUEST_ADDITION_VALUE, 'product' => ['id' => 312, 'name' => 'A product name']];
$actualReturn = $this->controller->getProductAction($this->request);
$this->assertEquals($expectedReturn, $actualReturn, 'Expected the controller to return an array with the header.');
}
